Designed for Polymer Clay Polishing and Grinding: Our polymer clay polishing kit is designed specifically for clay projects,making the of your clay works brighter and the details more refined.The high-quality wool polishing head can make the work smoother and more high-gloss,and the diamond grinding needle can reach very narrow spaces,making your work more professional. The titanium-plated twist drill bit is sturdy ,and can easily complete the drilling of clay works of various hardness and thickness.The included sandpaper can be polished with water to make your clay works more exquisite.It is compact and portable,without vibration,and ultra-quiet.It is very for women and users with insufficient arm strength.The polymer clay rotary tool has an automatic speed memory function that can permanently remember your last speed setting to improve work efficiency 35-Speed Adjustment: This polymer clay grinding pen has 35 adjusted speeds,Max speed is 350000rpm. You may choose different gears as actual needs. The low speed gear is suitable for fine grinding and polishing,especially for soft polymer clay or unhardened clay;the medium speed gear is suitable for grinding with medium removal,which can improve efficiency and is suitable for slightly harder clay. The high speed gear is suitable for coarse grinding that requires a lot of removal (use with caution and observe whether the clay is overheated, shiny, melted, or has deep scratches).It is recommended to start with a low speed gear, especially for novices or unfamiliar clay or areas. and Memory Function: Our polymer tool and polishing pen adopts a aluminum alloy shell, the digital display can clearly show the gear, power, forward and reverse, and the ultra- 1100mAh power battery can extend the service life. The charging time is only 40 minutes and it can be used continuously for more than 4 hours. Kit: Our mini grinder contains 78 accessories to meet your diverse needs.The wool polishing heads include 5x spherical,15x conical,and 10x cylindrical shapes,which can be used for polishing surfaces,curved surfaces and edges respectively.The titanium-plated twist drill bits (10pcs, 0.6-2.2mm) can be used for drilling gold and silver jewelry;the diamond grinding head (30pcs) has four color-coded polishing grits (100-240 grits),which can be used for polishing with different precisions according to project requirements;the included small sandpaper has 7 grits (400-2000#),which can be used wet or dry. It is recommended to use it with water to remove the dust layer. Wide Applications: Our polymer clay tool kit can not only be used for clay works, such as polymer clay earrings, necklaces, bracelets, keychains, coasters, home decoration, but also for different handmade projects, such as resin, wood, plastic, metal, glass, ceramic, stone and other items polishing, hand carving and polishing, jewelry making, our polishing tool kit can complete a series of tasks including polishing, grinding, sanding, drilling, etc. This exquisite kit is also very suitable as a gift for friends, DIY beginners and enthusiasts. Color:As Shown Material:Metal+Plastic Package Contents: 1set * drill for jewelry making Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.